Time lag is the functional delay at which physical events occur in the universe.
The functional delay is the time required for a series of related actions to occur in response to an initial action.
The minimum time lag at which physical events have been measured is the maximum speed attained by high-speed particles in a vacuum.
The maximum time lag is the time that it takes for light to reach the observer from the optical limit of the universe.
We often react to a situation rather than consider a thing. Reactions happen quickly. Considerations require more time and are more complex. A walk in the park can slow observations and events. It can transform reaction into awareness. – J. H.